Keyboard



FIG. 1 is a perspective view of a first embodiment of a keyboard showing my new design;

FIG. 2 is a front elevational view of FIG. 1;

FIG. 3 is a perspective view of a second embodiment of the keyboard;

FIG. 4 is a front elevational view of FIG. 3;

FIG. 5 is a perspective view of a third embodiment of the keyboard;

FIG. 6 is a front elevational view of FIG. 5;

FIG. 7 is a perspective view of a fourth embodiment of the keyboard;

FIG. 8 is a front elevational view of FIG. 7;

FIG. 9 is a front elevational view of FIG. 7 showing the keyboard connected with a mobile phone shell;

FIG. 10 is a front elevational view of FIG. 7 showing the keyboard in an operation state; and,

FIG. 11 is a front elevational view of FIG. 9 showing the keyboard in an operation state.

The broken lines showing of letters, symbols, keys, touchpads, and boundaries in the drawings illustrate portions of the keyboard which form no part of the claimed design. The broken lines in FIGS. 9 and 11 showing of a mobile phone shell form no part of the claimed design. The broken lines in FIGS. 10 and 11 showing of hands form no part of the claimed design. 

CLAIM The ornamental design for a keyboard, as shown and described. 